Nakamura from Flowers of Evil. I hated her throughout the series, because she has this forceful, bullying attitude.

But the turning point of the series, for me, is in the last episode (episode 13) when another main character read through her diary. That was when her whole personality was revealed, and we (as the audience) understands why she did the things she did.

After finishing the series, she has been like my fav character from anime. She makes the anime interesting.

I'm gonna go with Sora from No Game No Life just because I find him to be the most respectable MC out there. When most MC's would be whining about finding a way to get back to their own world he's working hard to peacefully conquer a nation full of cute animal girls and irrelevant animal dudes.

She kills people with style to say the least, she's really intelligent, plus she's amazingly kind hearted, considering she can, and on occasion does, single handedly slaughter 10s of thousands of people.

It slices, it dices, what is, why It's a Qiang Lei ofcourse.

I really hope a season 3 is made, as her fight where she takes revenge for something that happened in her past, is suppose to take place in that span of the story(among a lot of other things as well), that is bound to be a epic fight to say the least, it would be a crime not to animate such.